baber/WOPTO huggingface dataset:
Patent CA-1276520-C (CA)
Title: Portable emergency shelter
Inventor: HAYASHIDA JOHN P
IPC: E04H15/36
Filed: 1987-02-24
Granted: 1990-11-20
Abstract: ABSTRACT         An emergency shelter for cold climates is disclosed.          The shelter has a thermally insulating inner shell shaped to provide an occupant with adequate space for sitting, lying down or performing necessary tasks, while minimizing a technical volume and surface area for thermal efficiency.  To this end, the shell has a small foot section, a taller knee section and a taller and wider head section joined to the knee section by an appropriate transition.  The shell has an inflatable, impervious, self supporting outer layer and an air pervious, insulating inner layer.  A canopy extends over the foot, knee and transition sections to provide a heat transfer diameter around those sections of the shell.  The outer layer of the shell has an opening into the heat transfer chamber for ventilation.
Patent CA-1313485-C (CA)
Title: Detection of nucleic acid sequences using particle agglutination
Inventor: GEFTER MALCOLM L
IPC: C12Q1/68
Filed: 1987-03-03
Granted: 1993-02-09
Abstract: DETECTION OF NUCLEIC ACID SEQUENCES USING                 PARTICLE AGGLUTINATION                 Abstract of the Disclosure A method of detecting, identifying and/or quantitating nucleic acids in a sample through determination of agglutination or inhibition of agglutination of suspendable particles having nucleic acids bound thereto is described.  The nucleic acids can be bound directly to the particle surfaces or attached through a spacer molecule which can, in turn, be either covalently bound or adsorbed to the particle surfaces,  The suspendable particles are small enough to remain in suspension and will generally have a large particle size relative to the molecular weight of the DNA or RNA attached to the surfaces. The presence or absence of nucleic acid sequences in a sample is determined by detecting agglutination or inhibition of agglutination of particles having bound thereto nucleic acid se-quences complementary to those of interest in the sample.
Patent CA-1325990-C (CA)
Inventor: FRANCK JEAN-PIERRE
IPC: C10G69/14
Filed: 1987-04-16
Granted: 1994-01-11
Abstract: 1. A combined process for heavy naphtha hydroreforming and light naphtha hydroisomerization, wherein a first charge, consisting in major part of a heavy naphtha, is fed, through at least one heating zone, to at least two catalytic hydroforming zones arranged in series, the effluent from each hydroreforming zone, except the effluent from the last reforming zone wherethrough passes the charge, also circulating through at least one heating zone, the effluent from the last reforming zone being subjected to at least one fractionation so as to obtain a reformate and a hydrogen containing gas, a portion of said hydrogen being recycled to the hydroreforming zones, another portion of said hydrogen being admixed with a second charge consisting in major part of a light naphtha, the resultant mixture being preheated and then introduced into a catalytic hydroisomerization zone, the reformate and the effluent from the hydroisomerization zone being collected together and subjected to fractionation in the same stabilization column in order to obtain an improved isomerizate and reformate mixture, said process further comprising the use in the hydroisomerization zone of a catalyst containing at least one zeolite, the hydroisomerization being conducted without introduction of halogen or halogen compound into the hydroisomerization zone.
Patent CA-1282212-C (CA)
Title: Process for controlling pitch deposition from pulp in papermaking systems
Inventor: DREISBACH DAVID D
IPC: D21C9/08
Filed: 1987-04-21
Granted: 1991-04-02
Abstract: ABSTRACT            The invention relates to a process for controlling pitch deposition from pulp in papermaking systems which comprises adding to the pulp an effective amount of a polymer having hydroxyl groups pendant to the backbone of the polymer.  The polymer can be polyvinyl alcohol having 50% to 100% hydrolysis.  The polymer can also be a water-soluble copolymer having recurring units of nonionic hydrophilic monomers, anionic hydrophilic monomers and/or hydrophobic monomers, wherein the copolymer has at least 20 mol percent of vinyl alcohol.          In another aspect, this invention comprises adding to the pulp an effective amount of a water-soluble polymer derived by substituting hydroxyl groups onto a preformed reactive polymer, wherein the water-soluble polymer has at least 20 mol percent of hydroxyl groups.
Patent CA-1278505-C (CA)
Title: Depth punch
Inventor: MAILLOUX DOUGLAS
IPC: B25D5/00
Filed: 1987-06-01
Granted: 1991-01-02
Abstract: ABSTRACT          A depth punch includes a sleeve having a central bore, a flat, smooth lowermost surface and a threaded upper end.  A shaft is slidable in the sleeve, the lowermost end of the shaft being adapted for forming indentations in a workpiece such as a mold face, upon the shaft being stuck.  A striking head is formed on the upper end of the shaft, the head having an upper surface adapted to be struck, and a lower surface extending flange-like from the upper end of the shaft.  The lower surface is capable of limiting the downward travel of the shaft, and hence the depth of the indentations by contact with an adjustment nut which is threaded onto the sleeve.  A lock nut is threaded onto the sleeve beneath said adjustment nut.
Patent CA-1275324-C (CA)
Title: Phase scan antenna
Inventor: STERN RICHARD A
IPC: H01Q3/44
Filed: 1987-06-03
Granted: 1990-10-16
Abstract: ABSTRACT OF THE DISCLOSURE           A phase scan antenna suitable for millimeter wave radar applications is provided comprising a four-sided ferrite rod having a series of electromagnetic energy emitting slots along one side of the rod.  The remaining three rod side are enclosed by a metal, channel-shaped member which is spaced from the rod by a plastic, channel-shaped substrate member, so that energy emitted from the rod side which is opposite from the slotted rod side will be reflected to pass out the slotted rod side, to thereby enhance the antenna beam produced by the slotted rod side.  A magnetic biasing coil having serially-interconnected coil portions is helically wound about the metal channel-shaped member with the coil portions disposed between the slots in the first rod side to cause scanning of the antenna beam.  The ferrite rod may be end fed by either dielectric waveguide sections or hollow, metallic waveguide sections.
Patent CA-1306568-C (CA)
Title: Negative photoresist based on polyphenols and epoxy compounds or vinyl ethers
Inventor: ROTH MARTIN
IPC: H04N5/232
Filed: 1987-08-06
Granted: 1992-08-18
Abstract: 3-16036/+ Negative photoresist based on polyphenols and epoxy compounds or vinyl ethers Abstract The present invention relates to a negative photo-resist consisting essentially of a) at least one solid film-forming polyphenol, b) at least one compound which contains at least two epoxide groups or at least two vinyl ether groups or at least one epoxide and vinyl ether group in the molecule, c) at least one cationic photoinitiator for component b) and d) if appropriate customary additives.        The resist can be developed under aqueous-alkaline conditions.
Patent CA-1312617-C (CA)
Title: Addition reaction method
Inventor: SUZUKI MASAHIKO
IPC: C07F7/12
Filed: 1987-10-05
Granted: 1993-01-12
Abstract: ABSTRACT A process having the characteristic that a silicon compound having at least one hydrogen atom directly bonded to silicon in each molecule is addition reacted with an organic compound having at least 1 aliphatic double bond in each molecule in the presence of a platinum catalyst and an amide compound with the formula, RCONR1R2.          The presence of the amide maximizes the yield of the desired beta-adduct and minimizes the yield of the alpha-adduct.
Patent CA-1287430-C (CA)
Title: Polymeric amides for multifunctional vi improvers
Inventor: THALER WARREN A
IPC: C08L23/00
Filed: 1987-12-11
Granted: 1991-08-06
Abstract: ABSTRACT OF THE DISCLOSURE     A terpolymer having the formula:            (CH2-CH2) X -  -  (CH2-CH2)x -  wherein n = O to 12; x is about 15 to about 75 mole percent; y is about 25 to about 85 mole percent; z is about 0.1 to about 10 mole percent; R1 and R3 equal H, C1-C10 alkyl, alkyl amino, alkylpolyamino, alkyl amino ether, alkyl amino alcohol groups and R2 is an alkyl group having about 1 to about 8 carbon atoms.
Patent CA-1301692-C (CA)
Inventor: MARTSCHUK JOHN
IPC: C02F1/54
Filed: 1988-02-24
Granted: 1992-05-26
Abstract: ABSTRACT      In the process of recovering bitumen from oil sands wherein the oil sands are subjected to a hot water extraction comprising the steps of conditioning the oil sands, settling the conditioned oil sands in separation cells and subjecting the middlings layer to a scavenging step, the improvement of flocculating the discharge from the separation cells and/or scavenger circuits and recycling the released water to the conditioning step and separation cells.
Patent CA-1315442-C (CA)
Title: Mechanically compatible, polyphase blend of poly(vinyl chloride), polyolefin, chlorinated polyethylene, and graft copolymer of polyolefin and rigid fiber-reinforced composite thereof
Inventor: LEE BIING-LIN
IPC: C08L27/00
Filed: 1988-02-24
Granted: 1993-03-30
Abstract: MECHANICALLY COMPATIBLE, POLYPHASE BLEND OF POLY(VINYL CHLORIDE), POLYOLEFIN, CHLORINATED POLYETHYLENE, AND GRAFT COPOLYMER OF POLYOLEFIN, AND RIGID FIBER REINFORCED COMPOSITE THEREOF                 ABSTRACT OF THE DISCLOSURE Shaped articles which have excellent solvent resist-ance and resistance to fatty acids are formed from a thermoplastic polyblend of poly(vinyl chloriae) (PVC), chlorinated polyethylene (CPE), polyolefin (PO), and a graft copolymer of a polyolefin (PO-G). The thermoplastic polyblend contains a PO and PO-G (PO/PO-G) as a first continuous single phase, PVC and CPE as the second and third dispersed phases, and the relative amounts of the components are chosen so that there is, at most, an equal amount by weight of PO and PO-G each of which may be present in an amount as high as 40 parts by weight when the PVC is present in an amount in the range from 40 to 70 parts, so as to provide a mechanically compatible poly-blend without miscibility or chemical compatibility. Further, a glass fiber reinforced (GFR) polyblend of PVC/CPE/PO/PO-G having a HDT of at least 95°C and suffic-ient thermoformability to form the desired article has excellent notched impact strength. In the GFR polyblend the fibers are preferably long, at least 3 mm, and from 10-20 microns in diameter. The high HDT is obtained prov-ided only if both co-compatibilizers and glass fibers are present in the reinforced composite.
Patent CA-1327861-C (CA)
Inventor: BUTER ROELOF
IPC: C09D5/02
Filed: 1988-04-06
Granted: 1994-03-15
Abstract: ABSTRACT   Aqueous coating composition having a basis of a dispersion of an addition polymer (acting as binder), particularly as a base coat which is to be covered with a clear coat. To obtain layers having improved mechanical properties use is made of an addition polymer which is obtained in two or more steps by emulsion polymerization. In a first step copolymerization is effected of 60-95 parts b.w., based on 100 parts b.w. of addition polymer, of a monomer mixture comprising (A) 65-100 mole % of a mixture of 60-100 mole % of a (cyclo)alkyl (meth)acrylate, in which the (cyclo)alkyl group contains 4-12 C-atoms, and 0-40 mole % of a di(cyclo)alkyl maleate and/or a di(cyclo)alkyl fumarate, in which the (cyclo)alkyl groups contain 4-12 C-atoms, and 0-35 mole % of another, copolymerizable, monoalkylenically un-saturated monomer, and in a subsequent step of 5-40 parts b.w., based on 100 parts b.w. of addition polymer, of a monomer mixture (B) of 10-60 mole % of (meth)acrylic acid and 40-90 mole % of another copolymerizable, mono-alkylenically unsaturated monomer, the (meth)acrylic acid moieties being at least partially ionized.
Patent CA-1311268-C (CA)
Title: Method and a taper charger for the resistance free charging of a rechargeable battery
Inventor: KORDESCH KARL
IPC: H02J7/00
Filed: 1988-04-11
Granted: 1992-12-08
Abstract: ABSTRACT OF THE DISCLOSURE       A  resistance free constant voltage taper  charger for   batteries  in  which  a  voltage  regulator  of  a conventional  type  is  combined  with  a   conventional instrumentation  amplifier in such a way that the output voltage  increases  by the same amount  as  a  reference voltage coupled to the input of the amplifier is varied. The  result wil be that the voltage at the final  output is constant.     The  same  basic circuit cna be complemented  with two  switches  and  with  a  sample  and  hold   circuit controlled  by a pulse generated so that in short  pulse periods   the  voltage  regulator  is  disable  and  the resistance  free  electrochemical  battery  voltage   is sampled,  and  during  the longer intervals between  the periods the sampled and stored value is used to regulate the  output voltage so that the electrochemical  voltage remains unchanged.
Patent CA-1340361-C (CA)
Title: N6-substituted 9-methyladenines: a new class of adenosine receptor antagonists
Inventor: OLSSON RAY A
IPC: C07D473/00
Filed: 1988-04-21
Granted: 1999-02-02
Abstract: A series of 15 N6-substituted 9-methyladenines have been  assessed  as  antagonists  of  A2-adenosine receptor-mediated stimulation of adenylate cyclase in membranes of human platelets  and rat  PC12  cells  and  of  A1-adenosine receptor-mediated  inhibition  of  adenylate  cyclases  in membranes of rat fat cells and as inhibitors of binding of N6-R-[3H]-phenylisopropyladenosine to A1 adenosine receptors in rat brain membranes.
Patent CA-1283540-C (CA)
Title: Air distribution system for the occupant compartment of automotive vehicles
Inventor: YOTT EDWARD W
IPC: B60H1/24
Filed: 1988-05-27
Granted: 1991-04-30
Abstract: Abstract of the Disclosure In this invention a variable speed transverse fan is provided for booster application in multi-ducted heating, ventilating and air conditioning systems for automotive vehicle.  The transverse fan may be employed in a front arm rest and is selectively powered to provide air flow control to the rear passengers such as by increasing flow to the rear passenger when the main fan is on low speed.  Because of the high turbining loss characteristic of this type of fan, a significant reduction of the air flow to the rear can be obtained if desired by turning the transverse booster fan off when the main fan is on high speed.
Patent CA-1291608-C (CA)
Title: Injection molding method and apparatus with compression
Inventor: UEHARA TADAYOSHI
IPC: B29C45/00
Filed: 1988-06-01
Granted: 1991-11-05
Abstract: ABSTRACT OF THE DISCLOSURE         A predetermined amount of melted thermoplastic resin of raw material is injected into a molding space which is previously set to a temperature higher than that at which the resin begins to harden under the normal pressure and which has a capacity larger than a volume of a product. The injected resin is cooled in the molding space and pressurized before the resin is cooled to the temperature at which the resin begins to harden under the normal pressure.          When pressurized, the glass transition temperature of the thermoplastic resin is shifted to a higher temperature side so that the thermoplastic resin hardens in slight reduction of the temperature. The resin is cooled in the pressurized state until the resin possesses the dynamic rigidity under the normal temperature and pressure. While the thermoplastic resin is further cooled to the extraction temperature, the pressure applied to the resin is controlled so that increase of the dynamic rigidity due to the cooling is canceled and the dynamic rigidity of the thermoplastic resin in the cooling is maintained to that under the normal temperature and pressure.
Patent CA-1319612-C (CA)
Title: Iron-calcium mineral supplements with enhanced bioavailability
Inventor: MEHANSHO HAILE
IPC: A23L2/00
Filed: 1988-06-28
Granted: 1993-06-29
Abstract: IRON-CALCIUM MINERAL SUPPLEMENTS  WITH ENHANCED BIOAVAILABILITY           ABSTRACT Nutritional  mineral   supplements   comprise  iron compounds  and  calcium  compounds  in  combination  with citrates  or  tartrates,  ascorbates,  and,  optionally, fructose.  The tendency of calcium to inhibit the bio-availability of iron is reduced in such compositions, so that  conjoint  bioavailability  of  these  two  important minerals is enhanced.
Patent CA-1331102-C (CA)
Inventor: CHEN ANDRIE C T
IPC: E02B17/00
Filed: 1988-08-15
Granted: 1994-08-02
Abstract: ABSTRACT OF THE INVENTION        A method and structure for protecting an offshore structure in an arctic body of water from mobile ice, waves, and currents.  Soil is dredged from the floor of the body of water, deposited in a berm having a size and shape adapted to protect the offshore structure, and strengthened in place by mixing cement with a portion of the soil in the berm.  The space between the berm and the offshore structure is filled with unstrengthened soil fill.
Patent CA-1316222-C (CA)
Title: System for in vivo treatment of tumorous tissues on body surfaces
Inventor: FENYOE MARTA
IPC: A61N5/073
Filed: 1988-10-06
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE           A system is disclosed for in vivo treatment of tumorous tissues on a body surface, which comprises means for emitting polarized light by which a major body surface including the portion with the tumorous tissues is irradiated by polarized light of predetermined intensity between about 20 and 150 mW/cm2,  this polarized light predominantly including wavelength components exceeding 300 nm and substantially excluding ultraviolet components. The term "body surface" includes areas in body cavities to which light can be administered as well as under-surface tissues within the range of penetration of polarized rays. The term "major body surface" could include the whole free surface of the body of a subject when irradiated from one direction, or a dominant portion thereof.
Patent CA-1298003-C (CA)
Inventor: BAKKA RAYMOND
IPC: H04L12/56
Filed: 1988-11-25
Granted: 1992-03-24
Abstract: Apparatus comprising reception circuits (CR1/i) supplying the cells received by input links, transmission circuits (CT1/j) sending cells retransmitted over output links, a buffer memory (MT) for recording the cells received and delivering the cells to be retransmitted, as well as a device (SMT) for addressing the buffer memory comprising a source of recording addresses (SAE) and a source of reading addresses (fs1/j). 
<??>The switching apparatus further comprises a recording-disabling circuit (pi) conditioned by a signal (adl) arising from a content of at least one cell received or a signal (tle) arising from the absence of cell received and supplying a disabling signal (spi) and the source of addresses comprises a disabling device (pac, pal) affected by the said disabling signal (spi), in such a way that no memory location is then occupied in the buffer memory (MT). 
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Patent CA-1337362-C (CA)
Title: Packet-switching facilities
Inventor: EILENBERGER GERT
IPC: H04L49/111
Filed: 1988-12-15
Granted: 1995-10-17
Abstract: Information with random traffic volume is preferably trans-mitted in packet form over virtual circuits, with the packets being equal in length. In a packet-switching facility it may happen that two or more packets intended to be forward-ed on the same line arrive simultaneously on different lines.            Therefore, buffers must be provided in which the packets that cannot be forwarded immediately can wait. The amount of storage needed for this purpose, besides depending on the length of the packets, depends particularly on the number of incoming lines, the type of traffic, and the re-quired transmission quality. In prior-art packet-switching facilities, about 80% of the area of all chips in the switching network are used for these buffers.            According to the invention, fixed numbers of packets are combined into frames within the switching facility, and all packets are divided into subpackets of equal length and distributed to subframes. Switching takes place on the basis of subframes using synchronous time-division multiplexing. The amount of storage space needed in the switching network is reduced in the ratio of frames : subframes. The buffers are those which are necessary for synchronous TDM switching anyhow.
Patent CA-1297462-C (CA)
Title: Head mounted illumination and camera assembly
Inventor: KLOOTS JACOBUS
IPC: H04N5/225
Filed: 1989-01-09
Granted: 1992-03-17
Abstract: ABSTRACT   A head mounted apparatus for illuminating a work site, and for transmitting a visual image of the work site to a remote location for viewing on a television screen.  A camera and a light source are mounted on a head band which is worn by the user.  The camera lens is disposed generally between the eyes of the user to allow viewing of the same image as the user is seeing.  The light source is disposed slightly above the camera, and is coupled to a remote light source by a fiber optic cable.  The light source and the camera are independently pivotally mounted on a bracket, and the bracket is pivotally mounted to the head band.  A series of three pivotal attachments is provided so that the elevational angle of the light source can be adjusted independently of the camera and the head band, so that the elevational angle of the camera can be adjusted independently of the light source and the head band, and so that the light source and camera can have their elevational angles adjusted together with respect to the head band.     (6223L)
Patent CA-1308768-C (CA)
Title: Double voltage power circuit for automotive vehicle
Inventor: SAUER GERD
IPC: H05B3/26
Filed: 1989-01-19
Granted: 1992-10-13
Abstract: The circuit supplies electric current and is particularly suitable for a vehicle in that it provides two different application voltages. One of these is the normal on-board network voltage and the other is a voltage higher than the on-board voltage for supplying a heated window incorporating a heating resistance in the form of a thin layer. The generator (41) is provided to supply the higher voltage, which is at least equal to that required for the operation of the heated window. When the heated window is switched off, the voltage supplied by the generator (41) is adjusted by the control circuit (40) to the on-board network voltage (B+). When the heated window is switched on, the on- board network voltage is derived from the higher voltage (G+). To ensure reliable operation, additional monitoring elements are provided in the form of an interval timer (44) for temporarily and briefly lowering the excitation current of the generator (41) during the switching of the regulator cut-out (45), a master clock (46) for limiting the heating time and a threshold switch (49) for limiting the voltage (G+) from the generator. 
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Patent CA-1309463-C (CA)
Title: Automated eddy current metal hardness measurement system
Inventor: PRINCE JAMES M
IPC: G01N27/90
Filed: 1989-02-06
Granted: 1992-10-27
Abstract: Abstract of the Disclosure A system for measuring the hardness of car-tridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case.  A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis.